nginx的“env”指令在这里是不允许的

我使用docker-compose nginx ，并希望docker-compose将SERVER_NAME作为环境variables传递给nginx 。我创build了下面的nginxconfiguration文件：

myconf.conf:

 # Environment variables are used to dynamically set SERVER_NAME # from docker-defined environment variable. This logic is stolen from: # # https://docs.apitools.com/blog/2014/07/02/using-environment-variables-in-nginx-conf.html # https://github.com/wantedly/nginx-image-server/blob/master/files/nginx.conf env SERVER_NAME; upstream django { server workflows-django:8000; } server { listen 80; perl_set $server_name_from_env 'sub { return $ENV{"SERVER_NAME"}; }'; server_name $server_name_from_env; return 301 https://$server_name$request_uri; } server { listen 443 ssl; perl_set $server_name_from_env 'sub { return $ENV{"SERVER_NAME"}; }'; server_name $server_name_from_env; ssl_certificate /etc/ssl/private/bostongene.crt; ssl_certificate_key /etc/ssl/private/bostongene.key; charset utf-8; client_max_body_size 75M; location /media { alias /srv/workflows/media; } location /static { alias /srv/workflows/static; } location / { # We can talk to upstream django either via uwsgi or just http proxy # uwsgi: uwsgi_pass django; include /etc/nginx/uwsgi_params; # http proxy: #proxy_set_header Host $host; #proxy_pass http://django } }

出于某种原因，nginx正在诅咒env指令：

 2016/08/26 13:02:39 [emerg] 1#0: "env" directive is not allowed here in /etc/nginx/sites-enabled/default:7

这里是我的Dockerfile，在这里你可以看到这个configuration被用作nginx的默认站点：

Dockerfile:

 FROM debian:latest RUN apt-get update && apt-get install -y nginx \ ca-certificates \ gettext-base COPY myconf.conf /etc/nginx/sites-available/default COPY myconf.crt /etc/ssl/private/ COPY myconf.key /etc/ssl/private/ # forward request and error logs to docker log collector RUN ln -sf /dev/stdout /var/log/nginx/access.log \ && ln -sf /dev/stderr /var/log/nginx/error.log EXPOSE 80 443 CMD ["/usr/sbin/nginx", "-g", "daemon off;"]

为什么？

答：请允许我说，详细的问题是什么。 myconf.conf文件被用作/etc/nginx/sites-available/default ，这不是root的nginxconfiguration。根nginx的configuration是nginx.conf ，它包含http上下文中的/etc/nginx/sites-available/default ：

 http { ... ## # Virtual Host Configs ## include /etc/nginx/conf.d/*.conf; include /etc/nginx/sites-enabled/*; }

所以我的env语句实际上是在http上下文中，这是不正确的 – 它应该只写在根上下文中。

https://bot.ngx.cc/logs/%23nginx/2015/01-January/%23nginx.01-31.log （用“nginx bug”env指令在这里不允许）“”）给了我答案。

正如server伪指令 ¹所证明的那样，这不是您的主要配置文件，而是一个要包含的块，很可能在http 上下文中。 env只在main情况下有效。

¹ _{的链接显示，有几个类型的server指令，其中没有一个在main上下文中有效}